Tread portion of an automobile tire



FIG.1 is a perspective view of tread portion of an automobile tireshowing my design;

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a fragmentary enlarged front view surrounded by line 6-6 andline 6′-6′ in FIG. 2 thereof;

FIG. 6 is an end face view taken along line 7-7 in Fig. 5 thereof;

FIG. 7 is an end face view taken along line 8-8 in Fig. 5 ; and

FIG. 8 is an end face view taken along line 9-9 in Fig. 5 ; and,

FIG. 9 is view of the fragmentary enlarged front view of FIG. 5highlighting the grooves.

In FIG. 9 the solid contrast is for the purpose of highlighting thegrooves. The black contrast is for the purpose of highlighting thedeepest grooves, and the gray contrast is for the purpose ofhighlighting the less deep grooves.

In the drawings, the broken lines are for defining the sidewall, innerbead and the boundary between the clamed tire tread and the unclaimedsidewall, and form no part of the claimed design.

CLAIM The ornamental design for a tread portion of an automobile tire,as shown and described.